That component belongs to granite and more of works with config with any dialog. If its for a customer project, I would advise to build your own or take the reference from /apps/weretail/components/content/buttonHowever you can use these configOutput.

You can use cq:htmlTag to define ithttps://helpx.adobe.com/in/experience-manager/6-4/sites/developing/using/decoration-tag.html#ComponentControls

Can you try recompiling the JSP from here http://localhost:4503/system/console/slingjsp  and restart the instance once.Also double check if all bundles are active http://localhost:4503/system/console/bundles

Seems like an issue, you can open it here with details.Issues · adobe/aem-core-wcm-components · GitHub meanwhile let me check if i can provide some resolution.

You can update permissions for your image so that it can read by anonymous user which I am assuming you are using to access images from another site.

Two things can create issue:1. your components configs- Can you share the editconfig node2. component specific CSS?Can you share any screenshot?

You should be seeing line no where NPE is occuring, can you check?Also is that the complete code?Make sure you bundle is resolved in felix

code will not compile if that's the case

No additional packages or installations are required on AEM 6.4 and later.Adobe Experience Manager Help | Getting Started with AEM Content Services - Part 1 - AEM Content Services Set up Which version of AEM u are using?

Yes, they can't be deleted from AEMit's a known issue